I found this recipe on Crock-a-doodle-do. But of course I made some changes to use what I had on hand. This is how I made it and it was Excellent. No complaints and there were no leftovers.
1 can chicken breast, drained and shredded
1/2 cup mushrooms, chopped
1/2 cup green pepper, chopped
1 1/2 cups cottage cheese
1 can cream of chicken soup
3/4 of empty can (from above) water
1/2 cup grated Parmesan cheese
1 cup sharp cheddar
1 tbsp onion powder
1 teaspoon garlic salt
8 oz. pasta (I used a mixture of egg noodles and rigatoni to use up what I had on hand.)
Spray inside of crock pot dish with cooking spray. Add first 10 ingredients and mix well. Cook on low for 4 hours.
Cook pasta as directed on package. Add to crock pot, stir well, then serve.
I'm too lazy right now to try to figure out the cost of this recipe and a lot of the stuff I had on hand. But it was really good and definitely a recipe that I'll be making again.